Facile sonochemical method for preparation of Cs2HgI4 nanostructures as a promising visible-light photocatalyst

Abstract

Attempts are continuing to discover novel and efficient solutions to promote water grade and industrial sewage treatment. For the first time, we present a novel Cs2HgI4 photocatalyst functional below visible radiation. Cs2HgI4 nano photocatalyst has been prepared via an accelerated sonochemical approach to examine its photocatalytic progression. Several construction circumstances, including variations of power and time of sonication and performance of different surfactant types, were conducted to produce fine particles with uniform morphology. FESEM images attested that the presence of surfactant had an adverse and destructive effect on the morphology of products. The bandgap for Cs2HgI4 nanostructures was determined to be approximately 2.3 eV, making these nanostructures desirable for photocatalytic applications. The photocatalytic data confirmed that Cs2HgI4 could destroy acidic coloring agents greater than basic ones. The highest photodegradation was observed for methyl orange with 76.8%.

Keywords

• Cesium mercury tetraiodide
• Organic pollutants
• Environmental remediation
• Sonochemical pathway
• Thermochromic materials